Smart smoke alarms are essential for home safety, offering advanced features like smartphone alerts, self-testing, and easy silencing of false alarms. The NYT Wirecutter recommends Google Nest Protect for most users, providing fast smoke and carbon monoxide alerts, voice warnings, motion-activated path lights, and wireless interconnection with other Nest devices. It also self-tests to ensure functionality and offers both hardwired and battery-powered options. The Kidde Hardwired Smoke Alarm with Indoor Air Quality Monitor is listed as a more affordable runner-up, capable of linking with non-smart alarms and providing reliable alerts, though it lacks some of Nest’s polished features. Smart alarms are ideal for vacation homes, second properties, or homes of loved ones needing extra care, as they address common issues like low-battery chirps and false alarms, ensuring continuous protection.